Datasheet FL103M Datasheet (Fairchild)

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Application

Fairchild Device

Input Voltage

Range

Rated Output

Power

Output Voltage (Rated Current)

LED Illumination

FL103M

85-265VAC

8.4W

24V (0.35A)

R201

24K/3216

R101 100K/3216

N

L

L101

1mH

+

C101 10uF/400V

+

C102

10uF/400V

LED+

LED-

U101

FL103

VDD

3

HV

8

NC

7

GND6NC

4

CS

1

GATE

2

VS

5

+

C201 100uF/35V

C106

2.2n

L102

Short

R102

120K/3216 C103

4.7n/1kV D101 1N4007

D102 1N4007

D201

ES2D(200V/2A)

+

C104 10uF/50V

T101

5

1

2

4

10

9

Q101

2N60R103

10R/2012

R104

100R/2012

R108 2R2/3216

R107

2R2/3216

R105 120K/2012

R106 22K/2012

C105

47pF/2012

MB6S(600V/0.5A)

BD101

N1-

4

+3L

2

F1

250V/1A

Fairchild Reference Design

The following reference design supports inclusion of FL103M in design of LED illumination. It should be used in conjunction with the FL103M datasheet as well as Fairchild’s application notes and technical support team. Please visit Fairchild’s website at http://www.fairchildsemi.com.

Key Features

 Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-

Feedback Circuitry

 Low EMI through Frequency Hopping  Low Power Consumption in Standby  Protection Functions: UVLO, Over-Voltage, Over-Current, and Over-Temperature

1. Schematics

Figure 1. Schematic

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4

5

3

1

7

10

2

Np1

0.20φ * 1 76T

Np2

0.20φ * 1 41T

Ns

0.32φ(TEX) * 1 39T

Na

0.13φ * 1 27T

Primary

2

3

Secondary

Tape 3T

10

Tape 3T

3

1

4

5

Np1

Na

7

Ns

Np2

No.

Winding

Pin (S  F)

Wire

Turns

Winding Method

1

Np1

2  3

0.20 Φ * 1

76

Solenoid Winding

2

Insulation: Polyester Tape t = 0.05 mm, 3 Layers

3

Ns

10  7

0.32 Φ (TEX) * 1

39

Solenoid Winding 4 Insulation: Polyester Tape t = 0.05 mm, 3 Layers

5

Np2

3  1

0.20 Φ * 1

41

Solenoid Winding

6

Insulation: Polyester Tape t = 0.05 mm, 3 Layers

7

Na

4  5

0.13 Φ * 1

27

Center Solenoid winding

8

Outer Insulation: Polyester Tape t = 0.05 mm, 3 Layers

Specification

Remark

Inductance

4 - 5

1.13mH ± 7%

1kHz, 1V

Leakage

4 - 5

Max. 20uH

Short all output pins

2. Transformer

2.1. Transformer Schematic Diagram

2.2. Winding Specification

Core: EE1614S (PC-40) Bobbin: 10 Pins

2.3. Electrical Characteristics

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VIN

Efficiency

VO[V]

IO[A]

3. Performance

Figure 2. Efficiency Curve

Figure 3. Constant Current Tolerance Using Electric Load (CR)

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VIN[VAC]

IO[mA]

VIN[VAC]

Figure 4. Constant Current Tolerance Using Electric Load (CV)

Figure 5. Constant Current Tolerance Using LED Load

4. Related Resources

Datasheet link FL103

http://www.fairchildsemi.com/referencedesign/

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